Hi, as I said on twitter I don't answer stuff immedietly and usually I need some time, sorry for keeping you waiting, my adhd and being uni student doesn't really let me👍 also i got one question about it, not two?? but okay uh generally osdd is diagnosed when not all diagnostic symptomps for DID are met, the main difference is that DID systems have more distinct alters and experience dissociative amnesia between them, OSDD-1a systems have less distinct alters and often see them more as parts or versions of themselves while experiencing the amnesia and OSDD-1b systems have distinct alters and don't really experience this sort of amnesia. Of course most systems still deal with dissociative amnesia, but there's like difference between the one between switching and the. more general one. HOWEVER it is just the most basic thing between these discorders that differs them and it is obviously not the same for everyone, experiences of systems vary. Im sorry for not providing you a more detailed answer, but I can really just speak about myself. I'm open to questions about my experience on more specific system-related stuff (unless I find it too personal) and I really appreciate you wanting to educate yourself, but when it comes to topics like this one, I honestly would recommend just googling it and reading more about diagnostic criterias and experiences of other systems than me, doing your own reaserch, because it isn't a hard information to find and it will probably take you less time that waiting for my answer . Please don't get me wrong, I appreciate you wanting to learn, but I am really just a teenager that is on twitter mostly to tweet about their interests and me being open about my discorder doesn't make me an educational account.